2027 ICD-10-CM Diagnosis Code O62.4Hypertonic, incoordinate, and prolonged uterine contractions

ICD-10-CM Codes›O00-O9A›O60-O77›O62

ICD-10-CM O62.4
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O62.4 is a billable ICD-10-CM diagnosis code for hypertonic, incoordinate, and prolonged uterine contractions. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 817 through 819, 831 through 833. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Malposition, disproportion or other labor complications.

Code Identity

ICD-10-CM Code
O62.4
Billable Status
Yes — Valid for Submission
Code Describes
Hypertonic, incoordinate, and prolonged uterine contractions
Short Description
Hypertonic, incoordinate, and prolonged uterine contractions
Same as the full description in the CMS dataset.
Parent Code
O62
Abnormalities of forces of labor

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO60-O77Complications of labor and delivery
CategoryO62Abnormalities of forces of labor
This CodeO62.4Hypertonic, incoordinate, and prolonged uterine contractions

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O62.4.

Maternity diagnoses
The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Contraction ring dystocia
  • Dyscoordinate labor
  • Fetal disorder due to hypertonic uterine dysfunction
  • Fetal disorder due to maternal contraction ring
  • Fetal disorder due to maternal disorder of labor
  • Fetal disorder due to uterine dystocia
  • Finding of duration of uterine contraction
  • Finding of strength of uterine contraction
  • Hypertonic contractions
  • Hypertonic lower uterine segment during labor
  • Hypertonic uterine dysfunction
  • Hypertonic uterine inertia
  • Pelvic dystocia AND/OR uterine disorder
  • Persistent uterine contraction
  • Retraction ring dystocia
  • Tetanic contractions of uterus

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O62.4: its own notes plus those printed at Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Cervical spasm
  • Contraction ring dystocia
  • Dyscoordinate labor
  • Hour-glass contraction of uterus
  • Hypertonic uterine dysfunction
  • Incoordinate uterine action
  • Tetanic contractions
  • Uterine dystocia NOS
  • Uterine spasm

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On O62.4 itself
  • dystocia (fetal) (maternal) NOS (O66.9)
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O62.4, its category, or a range that includes it.

Applicable To 1

These notes mention O62.4.

  • P03.6 Newborn affected by abnormal uterine contractions
    Newborn affected by conditions classifiable to O62.-, except O62.3 names O62.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG024
Malposition, disproportion or other labor complications
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert O62.4 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
661.41 Uter dystocia NOS-deliv
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O62.4Overview

What is the ICD-10 code for hypertonic, incoordinate, and prolonged uterine contractions?

The ICD-10-CM code for hypertonic, incoordinate, and prolonged uterine contractions is O62.4 (sometimes written as O624). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is O62.4 (Abnormalities of forces of labor) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report hypertonic, incoordinate, and prolonged uterine contractions on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does O62.4 group to?

When hypertonic, incoordinate, and prolonged uterine contractions is the principal diagnosis on an inpatient stay, it groups to MS-DRG 833, 832, 831, 819, 818, 817, with relative weights from 0.5000 to 1.7586 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can O62.4 be reported for?

The Medicare Code Editor checks hypertonic, incoordinate, and prolonged uterine contractions against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

Can O62.4 be reported with O66.9?

Not as a rule. The Excludes1 note on O62.4 lists "dystocia (fetal) (maternal) NOS (O66.9)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).